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Search: Posts Made By: Kapusta
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Forum: General Cycling Discussion
01-20-21, 09:10 PM
Replies: 81
Views: 6,524
Posted By Kapusta

Wow, you really DO want to keep this going :foo: ...

Wow, you really DO want to keep this going :foo:

You actually want to have an argument about an argument..... that you were not even part of.

Yeah, BF at its finest, here.
Forum: General Cycling Discussion
01-20-21, 06:13 AM
Replies: 81
Views: 6,524
Posted By Kapusta

No, because I am not waiting anymore. I got what...

No, because I am not waiting anymore. I got what I was looking for: a knowledgeable explanation (Thanks, Rchung)

That discussion ended 5 days ago. Do you really want to drag this up again and keep...
Forum: General Cycling Discussion
01-15-21, 11:20 AM
Replies: 81
Views: 6,524
Posted By Kapusta

Since you have been quoted here, I was going to...

Since you have been quoted here, I was going to reach out to you to get some clarification:

How wide a range of tires did you find the roller data to match up consistently with the real world data...
Forum: General Cycling Discussion
01-15-21, 08:32 AM
Replies: 81
Views: 6,524
Posted By Kapusta

Well that is one way to handle a technological...

Well that is one way to handle a technological debate. Not my cup of tea, but if it works for you.....
Forum: General Cycling Discussion
01-14-21, 09:41 PM
Replies: 81
Views: 6,524
Posted By Kapusta

OK, I have spent way more time on this than I...

OK, I have spent way more time on this than I ever meant to. If you want to have full faith in drum tests for all tires, have at, and enjoy.

More RH tires for the rest of us :)
Forum: General Cycling Discussion
01-14-21, 09:39 PM
Replies: 81
Views: 6,524
Posted By Kapusta

Actaully, I was talking about comparisons. That...

Actaully, I was talking about comparisons. That is why I brought up the difference between the second and fifth graphs. Graph shows the real world data for a 23mm Vittoria on smooth pavement very...
Forum: General Cycling Discussion
01-14-21, 09:36 PM
Replies: 81
Views: 6,524
Posted By Kapusta

Forget his write up, just look at the results of...

Forget his write up, just look at the results of the other test.

And again, ask anybody who has spent time an a Bon Jon Pass. The BRR.com results don't make sense.
Forum: General Cycling Discussion
01-14-21, 09:29 PM
Replies: 81
Views: 6,524
Posted By Kapusta

Are we talking about the same graph? ...

Are we talking about the same graph?
https://cimg5.ibsrv.net/gimg/bikeforums.net-vbulletin/589x439/fig2_d05950c07c898099eed16186e71a818a8de58f4b.png
From the description, the roller data (dark blue...
Forum: General Cycling Discussion
01-14-21, 08:10 PM
Replies: 81
Views: 6,524
Posted By Kapusta

You are taking a bunch of disparate information...

You are taking a bunch of disparate information and molding into a conclusion that none of it supports.
Forum: General Cycling Discussion
01-14-21, 07:56 PM
Replies: 81
Views: 6,524
Posted By Kapusta

Ask literally anybody who has owned a Bon Jon...

Ask literally anybody who has owned a Bon Jon Pass if they think that data on BRR for that tire makes sense.

Also, take a look at this: https://www.renehersecycles.com/testing-tires-isnt-easy/ The...
Forum: General Cycling Discussion
01-14-21, 07:46 PM
Replies: 81
Views: 6,524
Posted By Kapusta

A sample size of one does not validate anything. ...

A sample size of one does not validate anything.

Are you purposely avoiding looking at the 5th chart (the one with the 25mm Continental GP4000s II tires)? The roller drum data is different from...
Forum: General Cycling Discussion
01-14-21, 07:36 PM
Replies: 81
Views: 6,524
Posted By Kapusta

Yes, it is beside the point. We agree an...

Yes, it is beside the point. We agree an something :)
Forum: General Cycling Discussion
01-14-21, 07:00 PM
Replies: 81
Views: 6,524
Posted By Kapusta

No, actually you can't infer the rest with a...

No, actually you can't infer the rest with a sample size of one.

Plus, as I said, look at the chart down farther showing results for the 25mm Continental GP4000s II.
Forum: General Cycling Discussion
01-14-21, 06:58 PM
Replies: 81
Views: 6,524
Posted By Kapusta

Actually, what I have confirmed to myself is that...

Actually, what I have confirmed to myself is that the data from BRR.com for two tires I have actually owned is very different from how they worked on the road.

Also, take a look at the link to the...
Forum: General Cycling Discussion
01-14-21, 06:50 PM
Replies: 81
Views: 6,524
Posted By Kapusta

I've responded to this particular article many...

I've responded to this particular article many times over the years. I will try to find my response so I do not have to re-type.

But three things for now:

1- The chart you refer to is a sample...
Forum: General Cycling Discussion
01-14-21, 06:26 PM
Replies: 81
Views: 6,524
Posted By Kapusta

Fine, then I will ask you again (as I have been...

Fine, then I will ask you again (as I have been asking for years): Show me the tests that demonstrate that drum tests can accurately predict RR in real world road conditions across various types of...
Forum: General Cycling Discussion
01-14-21, 06:21 PM
Replies: 81
Views: 6,524
Posted By Kapusta

Sure, but without knowing what they were testing...

Sure, but without knowing what they were testing and under what conditions, it is impossible to know how widely applicable the findings are.
Forum: General Cycling Discussion
01-14-21, 06:01 PM
Replies: 81
Views: 6,524
Posted By Kapusta

I'll ask yet again as I have been asking for...

I'll ask yet again as I have been asking for several years: show me the tests that validates roller drum results as an accurate predictor real world rolling resistance across a range of tires.

I...
Forum: General Cycling Discussion
01-14-21, 05:51 PM
Replies: 81
Views: 6,524
Posted By Kapusta

What is to address? Where are these tests? He is...

What is to address? Where are these tests? He is stating something, but I am not seeing any of the data. Most importantly, I don't know what type of tires or roads he is talking about. How does he...
Forum: General Cycling Discussion
01-14-21, 02:30 PM
Replies: 81
Views: 6,524
Posted By Kapusta

I have never seen any tests that demonstrate that...

I have never seen any tests that demonstrate that ranking on roller drums translates reliably to ranking on the road. I have seen many people say that they do, but no evidence. I have also looked at...
Forum: General Cycling Discussion
01-11-21, 09:12 AM
Replies: 81
Views: 6,524
Posted By Kapusta

I have not, but over the years I have read posts...

I have not, but over the years I have read posts from people who have and said there is a difference in the smoothness. Not huge, but a difference.

It does make sense, as the sidewalls on the ELs...
Forum: General Cycling Discussion
01-11-21, 07:24 AM
Replies: 81
Views: 6,524
Posted By Kapusta

You mean RH tires in general, or the standard...

You mean RH tires in general, or the standard casing?

FWIW, I just go all the way and get the extra light casing.
Forum: General Cycling Discussion
01-11-21, 07:19 AM
Replies: 81
Views: 6,524
Posted By Kapusta

I take drum roller tests with a big grain of...

I take drum roller tests with a big grain of salt, unless I am looking for a tire for my indoor rollers.
Showing results 1 to 23 of 23


 
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